LOS ANGELES — Los Angeles County has voted to ban stores from using single-use plastic bags.

County supervisors approved the measure today in hopes of preventing billions of bags from polluting neighborhoods and waterways.

The ordinance bans stores from giving customers single-use plastic bags and would require them to charge 10 cents for each paper bag beginning next year. The measure applies to unincorporated parts of the county and will directly affect an estimated 1.1 million people.

Supporters clapped and cheered the decision. Opponents, however, say they are concerned that jobs will be lost and residents in poorer neighborhoods will struggle with fees for paper and reusable bags.